All credits to sambas - It is powered by ARM® Cortex-M7® 32-bit microcontroller (STM32F745), working @ 216Mhz frequency. F1,F3 are working on 72Mhz and F4 is working on 168Mhz clock speed. So it is faster than F4 and has 8 hardware UARTs for any of your needs. Betaflight has a release target for this board – AnyFC, so you will be able to flash the newest firmware straight after the release.